Spray-topping annual grass pasture with glyphosate to delay loss of feeding value during summer. II. Herbage intake, digestibility, and diet selection in penned sheep

Australian Journal of Agricultural Research

Volumn 50, Issue 4, 1999, Pages 465-474

  Siever Kelly, C ^a,b   Leury, B J ^a,c   Gatford, K L ^c,d   Simpson, R J ^c,e   Dove, H ^e  

^a AGRICULTURE VICTORIA RESEARCH   (Australia)

^b University of Melbourne ^*  (Australia)

^c UNIVERSITY OF MELBOURNE   (Australia)

^d UNIVERSITY OF ADELAIDE   (Australia)

^e CSIRO   (Australia)

Author keywords

Annual ryegrass; Diet preference; Nutritive value

Indexed keywords

DIET; DIGESTIBILITY; HERBICIDE; NUTRITIVE VALUE; PASTURE;

EID: 0033024454     PISSN: 00049409     EISSN: None     Source Type: Journal    
DOI: 10.1071/a98129     Document Type: Article

References (19)

1. Arnold, G. W. (1960). Selective grazing by sheep of two forage species at different stages of growth. Australian Journal of Agricultural Research 11, 1026-33.
2. Armstrong, R. A., Simpson, R. J., Pearce, G. R., and Radojevic, I. (1992). Digestibility of senescing annual ryegrass following application of glyphosate. Australian Journal of Agricultural Research 43, 871-85.
3. Bell, F. R. (1959). Preference threshold for taste discrimination in goats. Journal of Agricultural Science 52, 125-9.
4. Bergman, E. N. (1990). Energy contributions of volatile fatty acids from the gastrointestinal tract in various species. Physiological Reviews. 70, 567-90.
5. Ciavarella, T. A., Simpson, R. J., Dove, H., and Leury, B. J. (1998). Diet selection by sheep grazing pastures with differing water-soluble carbohydrate contents. Animal Production in Australia 22, 392.
6. Colebrook, W. F., Black, J. L., Purser, D. B., Collins, W. J., and Rossiter, R. C. (1990). Factors affecting diet selection by sheep. V. Observed and predicted preference ranking for six cultivars of subterranean clover. Australian Journal of Agricultural Research 41, 957-67.
7. Crawford, M. C., and Simpson, R. J. (1993). Manipulation of the feeding value of senescing annual ryegrass (Lolium rigidum Gaud.) with imazethapyr and glyphosate. Australian Journal of Agricultural Research 44, 1653-66.
8. Davidson, K. J., McGuiness, S. F., Simpson, R. J., Pearce, G. R., and Hudson, D. (1988). Chemical curing with glyphosate to preserve the digestibility of summer pastures. Proceedings of the Australian Society of Animal Production 17, 387.
9. Gatford, K. L., Simpson, R. J., Siever-Kelly, C., Leury, B. J., Dove, H., and Ciavarella, T. A. (1999). Spray-topping annual grass pasture with glyphosate to delay loss of feeding value during summer. I. Effects on pasture yield and nutritive value. Australian Journal of Agricultural Research 50, 453-64.
10. Kenney, P. A., and Black, J. L. (1984). Factors affecting diet selection by sheep. I. Potential intake rate and acceptability of feed. Australian Journal of Agricultural Research 35, 551-63.
11. Kenney, P. A., Black, J. L., and Colebrook, W. F. (1984). Factors affecting diet selection by sheep. III. Dry matter content and particle length of forage. Australian Journal of Agricultural Research 35, 831-8.
12. Laredo, M. A., and Minson, D. J. (1975). The voluntary intake and digestibility by sheep of leaf and stem fractions of Lolium perenne. Journal of the British Grassland Society 30, 73-7.
13. MacRae, J. C. (1970). Changes in chemical composition of freeze-stored herbage. New Zealand Journal of Agricultural Research 13, 45-50.
14. MacRae, J. C., Campbell, D. R., and Eadie, J. (1975). Changes in the biochemical composition of herbage upon freezing and thawing. Journal of Agricultural Science 84, 125-31.
15. Obara, Y., Dellow, D. W., and Nolan, J. V. (1991). The influence of energy-rich supplements on nitrogen kinetics in ruminants. In 'Physiological Aspects of Digestion and Metabolism in Ruminants'. (Eds T. Tsuda, Y. Sasaki, and R. Kawashima.) pp. 515-39. (Academic Press: San Diego.)
16. Siegel, S. (1956). 'Nonparametric Statistics for the Behavioural Sciences.' (McGraw Hill: New York.)
17. SCA (1990). 'Feeding Standards for Australian Livestock: Ruminants.' (Standing Committee on Agriculture and CSIRO: Melbourne.)
18. Simpson, R. J. and Dove, H. (1994). In Dove, H. 'The Plant-Animal Interface Revisited'. Contract review in Animal Production in Australia 20, 59-61.
19. Sinclair, L. A., Garnsworthy, P. C., Newbold, J. R. and Buttery, P. J. (1993). Effect of synchronising the rate of dietary energy and nitrogen release on rumen fermentation and microbial synthesis in sheep. Journal of Agricultural Science 120, 251-63.